Hi Noah,
I'm Hendrix, here to help with your query on the Microsoft Q&A forums.
Apologies for any inconvenience you are experiencing. I am happy to help you today.
Here are my suggested ways to fix or suppress this issue without re-installing Gamebar, please kindly follow:
1 - Disable Game Bar Completely if you don’t want Game Bar at all:
Registry Edit (Disables Game DVR & Overlay)
Open PowerShell (Admin) and run:
reg add HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\GameDVR /f /t REG_DWORD /v "AppCaptureEnabled" /d 0
reg add HKEY_CURRENT_USER\System\GameConfigStore /f /t REG_DWORD /v "GameDVR_Enabled" /d 0
This stops Windows from calling the overlay.
2 - Repair System Associations
If the error persists:
Open PowerShell (Admin) and run:
Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
This re-register built-in apps and fixes broken protocol links.
To assist others who might have similar questions and to help us improve our support system, we kindly encourage you to "Accept the answer" if it successfully addressed your concern. Accepting an answer lets other users know that this solution worked for you, and it also helps us track the effectiveness of our support efforts.
Warm regards,
Hendrix Vu | Microsoft Q&A Support Specialist